From cb9e50f618081275b50489943d5655abfb85c84d Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Thu, 29 Aug 2013 21:50:13 +0200
Subject: build: Use `missing' for `dot'.

* configure.ac: Substitute `DOT'.
* doc.am (.dot.png, .dot.eps): Use $(DOT).
---
 configure.ac | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 7a7262f967..934ced5d72 100644
--- a/configure.ac
+++ b/configure.ac
@@ -121,6 +121,10 @@ AC_CACHE_SAVE
 
 m4_include([config-daemon.ac])
 
+dnl `dot' (from the Graphviz package) is only needed for maintainers.
+dnl See `HACKING' for more info.
+AM_MISSING_PROG([DOT], [dot])
+
 AC_CONFIG_FILES([Makefile
                  po/Makefile.in
 		 guix/config.scm])
-- 
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